Paper #16 MRI findings in successful arthroscopic Bankart reconstructions

To evaluate the MRI postoperative findings, the accuracy of arthroscopy for labrum relocation and its correlation with the clinical outcome. Twenty-two patients (22 shoulders) were available for a clinical and unenhanced MRI evaluation after arthroscopic Bankart repair. During the surgical procedure great care was taken to relocate the labrum over the glenoid edge. With a mean postoperative follow up 42.3 months a blinded clinical assessment with The Constant and Murley Functional Rating and the UCLA Shoulder Rating Scale was performed. The MRI images were evaluated by an experienced musculoskeletal radiologist. The appearance of the labrum was graded as over the glenoid edge (type1), at the same level (type2) or under the edge of the glenoid (type 3). The labrum images without contact with the glenoid bone were considered type 4. Type 3 and 4 were considered non-successful reconstructions. Twenty patients obtained a good or excellent clinical result (Constant 80–100)(UCLA 28–35). In this group of patients the MRI showed accurate labrum relocation with type 1 or 2 labrum reconstruction in all cases except one. Two patients were not satisfied with their outcome due to instability symptoms and pain. One of them had a type 3 labrum location and a type 4 was shown in the other. The findings of our study demonstrate that there is a high correlation between the arthroscopic labrum repair over or at the edge of the glenoid and the satisfactory results. The aim of any arthroscopic reconstruction should be relocate the labrum at the same level or over the glenoid rim.